Car-coupling.



PATBNTVED MAY 5, 1908.

s sHBETsf-SHEET 1.

' C. H. f'foamlvsom..v

GAR GOUPLING."

APPLICATION FILED JAN. 23,1907.

r l l l l l I l l l I l l l l.

wv/ A w 8 V Q\ ,...NP Q S (Q l dem to@ Il' l l I l l I l l IJ 8. o on. uw@ Y A* M D E T N E T A o.. OG SN NTL IL LP MU O NC -R .HA .C C L 5 5 .6, 8 8 0. N

APPLICATION FILED JAN. 23, 1907. s sHEBTs-sHB-Elirfz.-

wi 11 mazo No.886,554. PATENTED MAY 5, 1908.

CAR COUPLING.

AP1 L1GATION FILED JVANI-23, 1907.

3 SHEETS-SHEET 3.

,w 5%/ a M y www? tinrrnnsrarns nitraat oratori.

CHARLES H. TOMLINSON, Oi? MANSFIELD, OHIO, ASSLGNO TO THE TOMLLYSON COUPLER COMPANY, Ol" DENVER, (`Ol.ORADO, ttiltPOiLfi'F-ION Ol SOUTH DAKOTA.

CAR-COUPLING.

Specification of Letters Patient.

Patented May 5, 1908.

. To (1U whom it may concern.'

i5 .\Iy invention relates'. to car-couplers of the twin-jaw type, having substantially.arrowpointed heads and inore 'particularly to iinprovements in the car-couplings described and claimed in the Letters Patents No.

'2o SltLSS. bearing datent' January 2", Non

(car-coupling) and No. 814,924, bearing date oll March i3, i906 (car-coupling) granted to One ol' the objects oi my present invention 5 is to provide a 'ar-coupling which is attached to radiating or pivoted draw-bars comprising spring actuated twin coupling devices having heads ol such a contour that when they are more or less out oi'ialinement as when the cars, to which they are secured, are upon a curve and the coupling devices `forced in contact with each other that cach of the devices will be deflected b v the impact in such a inanner and direction as to bring them in such a position laterally and vertically with reterf ence to each other and the draw-heads as will permit them to interlock automatically with the hea-ds inclosed within-the hollow portion or chamber oli the draw-heads and the 'for- 40 ward notched counterpart extremities of the draw heads abutting against each other.

A\nother feature of my invention is thel construction of the heads of the coupling devices m such a way as to provide a Hat porL .i5 tion which, when the coupling devices ai'e iii-- tcrlocked and the draw-heads abuttingcach other, extends into the hollow portion ol the draw-heads and prevents'vertical movement. 'l`he tlat portion being ol' such a size as will 5o correspond with and lit betweenthe. upperl the coupling devices with a flattened portion which extends beyond the forward or ahutting extremities ot' thedraw-heads to such an l extent that the liattened portions of the heads will enter the chambers ot' the opposed draw-heads and aline both draw-heads with cach other before the abutting extremities contact with each other.

Atnother object ot my invention is the method employed oi' constructing cams for' each draw-head which are pivoted in the chamber of each draw-head in such a way as to act upon the shank of one coupling device and the iiiciiued or arrow-pointed head of the opposed coupling device whereby, ,when movement is imparted to the operating lever, one extremity of the cani exerts a pressure agaiiist the 'lace ol' one coupling device and the other extremity against the shank oi the other, unlocking 'the coupling.

Another object of my inveiition'i's tojiorrn the contacting laces oi the jaws of the cou i ling devices slightly inclined toward tllie shank so that 'when the,v are uncoupled theI laces oll the jaws will be on a plane with eachy other permitting them to interlock readily leaving the jaws hooked together when coupled.

Further objects of my invention 'consists in. constructing tho-cam and operating lever integral for actuating the coupling devices, and providing means ol' couplingto ay foreign coupling device or tlia\\"-liead and a'lTording protection for the coupling devices and operating mechanism when coupled to a for eien type of coupler.

l`he invention consists primarily in a car coupling secured to a pivotal or radiating rdraw-bar coi'nprising hollow draw-heads with counterpart notched forward ext'reini 'lies and spring actuated coupling devices pivotalh,v Imounted therein whereby vertical and lateral movement is prevented no inat ter whether the cars to whichy they are attached are making a curve or on a straight track a-iid meansto couple and uncouple the car-coupling when the cars are upon a curve or straight track.

ln the drawings, Figure] isa horizontal section showing two of my improved drawheads with their coupling devices uncoupled. ["ig. 2 is a horizontal sec-tion showing niyiinproved draw-heads with the coupling devices coup-led or interlocketl. Figs. 3 and l are top and side views, respectively, otono y o f the leaf springs used to actuate the coupl in alinement therewith a 'double-faced cani 1mg devices. Fig. 5 is aside elevation ofthe 1 cam showing lever arm made integral therewith and chain attached to the arm. Fig. 6, is a detail view of the bolt upon which-the cam, shown in Fig. 5, is journaled. Fig. 7, is a .detail view of a pin which passes through the hollowportion of the draw-head and is secured totheupper and lower walls to provide a means of pivotally attaching the couplingdey'fices in each draw-head. Fig. 8 is a topl or plan view of my improved. draw-heads showing themas they appear with the coupling devices interlocked. Fig. 9 is a vertical sectionjof Fig. 8, taken through the center showing the'coupling device and its actuating cam iifside elevation. Figs. 10 and 11 are detailviews of one of the cou )ling devices'. Fig. 12 isa side view of t e drawheads showing lthe projectingV ends of the coupling devices out of alinenient when the cars 'are on a curve or approaching each other upon a different grade with the inclined or arrow-pointed heads about `to contact with each other whereby the drawheads 'and coupling devices are deflected by impact and forced to aline with each other for cou ling purposes. Fig. 13 is a plan View o one of the draw-heads showing method of coupling it to a foreign coupling of the link and pin type. Fig. 14 is' a plan view of one of the draw-heads showing method of coupling to'a foieign coupling of the knuckle type.

In they drawings, the members 1- and 2 conipi'ise a radiating draw-bar composed of chanue'lir'on and is adapted to lit over vthe rear end 3"'of each draw head 4. The draw-heads are formed hollow with the side walls thereof diver'giiig outwardlyT from the rear extremities (5) to the forward extremities forming charnbers with an enlarged opening which gradually decreases in width toward the rear extremities. The purpose of these chambers to provide means of pivotally mounting therein the coupling devices' and operating mechanism described inoie particularly hereinafter. In the rear extremities of each draw-head suitable apertures are provided into which a pin 7 is fitted and secured to the top and lower wall of the draw-head. The

pin 7 is preferablyv formed with a reduced portion 8 leaving a shoulder 9 which rests upon the boss of the .draw-head thereby supporting the pin. The rear extremity 10 of each coupling device 6 is pivotally meunted u on the pins/7 leaving the arrow-pointed hea s 11 protruding beyond the counterpart notched forward extremities l2 of each drawhead. The throw or pivotalnioveinent of the coupling devices is shown in Figs. 1 and 2 which firures Ashow the relative movement required o each cou ling device to c ou le or uncouple them as` esired. In each raw- 1 1 'l 1 P L1 .ting each other.

.13 is pivotally journaled upon a pin 14 leaving the cam interposed between the shank of one coupling device and the inclined or arrow-pointed head of the opposed coupling device land contactinr therewith when the forward extremities of draw-heads are abut- Wheii movement is imparted to the cain, one. face l5-of the cam will act upon the inclined head of the opposedcoupling device and the other face 16 will actvupon the part (af) of the other coupling device forcing themto move outwardly and uncouple. A curved operating arm 17 is made integral with each cam 13 and extends outside the draw-head through the elongatedA slot or recess 1S formed in the side wall of the draw-head.

ln Fig. 1, one of the operating lever arms is shown in av osition substantially at right angles with t ie draw-heads which is thc linut of the throw, required to release or uncouple the coupling devices. @ne part of the cam acts upon .the 'shankof one coupling device and one upon the head of the opposed coupling device `leaving the Jaws thereo'f on a plane with each other andthe rear portion v of the heads in 'close proximity to the side walls. The jaws, 19 and 2() o'f the coupling devices are slightly inclined toward the shank in order to them together .as s iown in Fig. 2 to prevent any tendency of the coupling devices from pulling apart when coupled. One of the side walls of each draw-head at its rear extremity is undercut and a slot 21 formed contiguous thereto and communicating with the chamber of each draw-head. One or more leaf springs 22 are securely attached to1 the undercut portion of each draw-head with the free ends assing through the slot 21 of each draw-hea and resting u on the undercut portion of the draw-hea( and against the face 23 of the portion 23a formed in the side wall of each draw-head. The free ends of the leaf springs engage the Shanks of the coupling devices and exert a pressure thereon noi'- inally forcing them towaid each other for the purpose of interlocking with each other. The leaf s rings 22 are attached to each draw hea by the bolt 24 which passes through suitable apertures provided in the sidewalls andthe end lof the springs. In each draw-head a post 25-is made integral and so positioned as to be in close proximity to the-heads of the coupling devices when the jawsv are interlocked or coupled to 'protect them` against injury or damage by impact. (See Fig. 2). These posts also perform lan,-v

other fuiiction which will be described here-y inafter.

devices between points indicated by the ar-.

rows on Fig. 10 is flattened and made of such rovide means of hooking Walls of the draw-heads so that when the v l each othenverticallv. The notched forward are brought together loi' the purpose 'ot' coupling each draw-head is lorced to aline with the other verticallv. ll'hen the heads ol the opposed coupling devices come in conentei' the chainher and torce each draw-head extremitiesdil' the tlraw-heads"ii'liut against il each other and laterally aline each drawdiead vtact with each other the arrinv-pointed "heads to move in such a dii'ectioii as to hring them i in alineinent7 vertically. with each other inclosed'jvithiii the chamher ot' the opposed draw-heads. end of the operating lever l? for convenience in actuating the cani to release the coupling devices. ln Fig. l?) l have shown one oi" mv and coupling device with the o-pposedcoupling device and draw-head and the flattened poi'tioiis 26 of the heads ol' each coupling device enters the chambers ol' the opposed draw-head therehv alining each oll the draw- `y heads with each other verticallv and etl'ecwhen the heads ol each coupling device are tuallv preventing vertical movement ol' the 1 draw-heads when coupled. A chain 2T is attachedl to the l claim l. In a cai' coupler` the conilrmation ol' two hollow draw-heads 1 "votallv connected with coupling devices coupled to a foreign coupl ling (c) which accomplisl'ied h): usiung a link 28 and coupled in the usual manner lilv the pin (cl which is inserted in the aperture (c3) ol' the draw-head (see Fig. 2l.

lin Fig. 14 lhave shown one ol' in v coupling devices coupled to a foreign coupling (lil -ol the knuckle tvpe which l-accomplish hv the use of an auxiliar)v knuckle 2U which is attached to oneol mtv draw-heads` h v a pin (If) inserted in the aperture cil olA the drawhead. (See Figs. 2 and No Attention is called to the lact that the vertical post i" provides a protecting ineiins for in v couplinh when coupled to anv type or class oll couplers and guards it against injiirv from :in v cause 'while coupled.

inconvenience oi' da unige.

The o eration of inv cou )line' is as follows:I

fhen the are on a straight track. the protruding arriiw-pointctl or inclined heads of the coupling devices are sulistantiallv alined and as the cars approach each other the impact ot' the heads` against cach other forces the jaws otl the coupling devices to the proper position to interlock autoinatictillv through the nieiliuni ot the leal" releasing the coupling devices l'roni eachv other and holding them in the position shown in Fig. l until the cars are uncoupled. -When the cars are apprmtching each other l'oi' the purpose ol' coupling on a grade oi'ctirve/1 tne draw-head is swung to a position snhstantiafllj; in alinentent with the opposed drawheztd through the medium oll the radiating drow-har andthe impact between thenrrowpointed or .inclined heads detlcc-ts the drawiieads in such a direction as to bring the iitnwehcads..stimo;ntiallv in alinenient withA This feature. is ol'l especial advantage as it ati'oi'ds lacihties to" coupling my couplei' to an v type ol coupling without their'respective cars. coupling devices pivot,- allv mounted in the respective draw-heads @and normallv spring held in the coiiplcd posig tion. the said coupling ,devices protruding l'rom the drai'v-heads in lront and adapted to.

interlock loi' coupling purposes. said coupling devices also having arrow-pointed heads with llatte'ned horizontal portions protruding lro'm lf the draw-heads and adapted to enter and lit tlie chainlzer ol.' the opposed draw-head to prevent independent vertical movement, the

forward extremities ot' the draw-heads heilig provided with catunterpart notched extremities located in the reaixol the l'orward extremities AolZ the coupling.devices to prevent .independent lateral movement olt the drawheads when the cars ai'e coupled.

v 2. ln a car coupler. ct'impi'ising two hollow draw-heads pivotall)v connected with their respective cars, coupling devices pivotallv niountedin the respective draw-heads and normally spring held lii the coupledposition, a. double-faced cani interposed between' the shank of one coupling device andthe inclined vhead of the opposed coupling device having an operating arm inadeiiitegral therewith, a vertical post secured to the uppei' and lower wall ot' the draw-heads and adapted to guard and protect the operating mechanism and coupling devices.

i The combination of two draw-heads and the coupling' devices-pvotallhv mounted therein, the said coupling devices having the heads thereof provided with horizontal tiattened portion and adapted to aline tit and enter the chamber of the opposed draw-head fthe forward extremity of. each draw-head notched to interlock with thocorresponding extremity of the opposed draw-headdraw-head, of a spring actuated coupling de-y vice pivoted in the draw-head, said coupling device having its head flattened and adapted to enter the chamber of an opposed drawhead to prevent vertical i'novement, an ,un-

locking double faced cam Vhaving an arm made integral therewith extending outside the drawfhead whereby the cam is operated to unlock the coupling.

6. In'a car 'coupling with a draw-bar pivotally connected to a car, a draw-headsecured thereto, a coupling device pivota'll;Y mounted withmthe chamber of une drawhead, the forward extremity of said drawhead having recesses and projections adapted to abut against an opposed draw-head having counterpart recesses and projections whcrcb)1 lateral movement of the draw-head is prevented, means to actuate the coupling device, a post located within the chamber of the' draw-head and adapted to protect and guard the', operating mechanism and coupling device whereby a foreign coupler can hecoupled -without inconvenienceor damage.

7. In a carl coupling comprising hollow draw-heads pi'votally connected to the car body, couplingv devices pivotallv mounted within said draw-heads with the forward exltremitics protruding beyond the forward eX-' trcmities of the drawheads, means so located as to be interposed bet-weer. the shank of one coupling device andthe inclined head of the opposed-coupling device when they-are in locked position for uncoupling purposes, the 'said coupling devices having their heads formed arrmv-pointed with contiguous horizontal flattened portions flattened to vfit hetween the. upper and lower walls of the opposed draw-heads to prevent'vertical movement, the forward extremityv of'each drawhead notched to correspond with the forward extremity of the opposed draw-head and adapted to interlock to prevent lateral mover ment. v

8. In a -car coupling, the combination of two hollow draw-heads secured 'to a radial draw-bar, coupling devices pivotally mounted in the rear extremities of said draw-heads with the heads projecting beyond the forward extremity of each draw-head, said heads provided having horizontally disposed attened portions adapted 'to entei and fit between the upper and lower Walls of the draw-heads to prevent vertical movement, iin-coupling means comprising a doublefaced cani, an operating arrn made integral secured to each draw-'head as described. Y

u. A car coupling comprising a draw-head, a coupling device pivotally mounted thereon, a cam to actuate said coupling device, a vertical post provided in said drawhead to pro tect the coupling device' and preventfexcessive movement of ,any foreign connecting means. l

10. In a car coupler, the combination of a draw-head, a spring actuated'coupling device mounted thereon` means of actuating the .coupling device consisting of a double faced cam pivotall)v mounted on the draw-head with an operating lever made integral therewith.

In testimonyv whereof vIflllx'cmy signature in presence of two witnesses.

CHARLES ll. 'l`().\ll)li\`h`().\'. Witnesses:

.DAvIn Ll. Dini'rns, Joux ll. (Toss. 

